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In the Laverda lineup introduced in 1983, the 5-cylinder 3600 and 3700 models were quite large combines compared to the smaller models. However, the technology was largely similar to that of the smaller models. The sieves were significantly larger than in the previous models. The 3600 was equipped with a 5.5-liter engine, and the 3700 with an 8.1-liter engine. The drive transmission was mechanical. Driving speed and the unloading auger speed were adjusted using the left foot pedals. The grain tanks were large. A curved-glass cab was an optional extra.

The largest Laverda was the 6-cylinder 3900, the successor to the M182, which had a 12.9-liter 225-horsepower V6 engine. The drive transmission was hydrostatic, and the cab was located to the left of the center line of the combine. Air conditioning and a monitoring system with 19 functions were standard equipment. The controls differed completely from those of the smaller models. In size, the 3900 corresponded to Claas 108.

From the mid-1980s onwards, the brand of the combines was Fiatagri.

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